1. 根目录:
2. arch
3. m68k
4. amiga
5. platform.c

/*
 *  Copyright (C) 2007-2009 Geert Uytterhoeven
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 */

#include <linux/err.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/zorro.h>

#include <asm/amigahw.h>
#include <asm/amigayle.h>
#include <asm/byteorder.h>


#ifdef CONFIG_ZORRO

static const struct resource zorro_resources[] __initconst = {
	/* Zorro II regions (on Zorro II/III) */
	{
		.name	= "Zorro II exp",
		.start	= 0x00e80000,
		.end	= 0x00efffff,
		.flags	= IORESOURCE_MEM,
	}, {
		.name	= "Zorro II mem",
		.start	= 0x00200000,
		.end	= 0x009fffff,
		.flags	= IORESOURCE_MEM,
	},
	/* Zorro III regions (on Zorro III only) */
	{
		.name	= "Zorro III exp",
		.start	= 0xff000000,
		.end	= 0xffffffff,
		.flags	= IORESOURCE_MEM,
	}, {
		.name	= "Zorro III cfg",
		.start	= 0x40000000,
		.end	= 0x7fffffff,
		.flags	= IORESOURCE_MEM,
	}
};


static int __init amiga_init_bus(void)
{
	struct platform_device *pdev;
	unsigned int n;

	if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO))
		return -ENODEV;

	n = AMIGAHW_PRESENT(ZORRO3) ? 4 : 2;
	pdev = platform_device_register_simple("amiga-zorro", -1,
					       zorro_resources, n);
	return PTR_ERR_OR_ZERO(pdev);
}

subsys_initcall(amiga_init_bus);


static int __init z_dev_present(zorro_id id)
{
	unsigned int i;

	for (i = 0; i < zorro_num_autocon; i++) {
		const struct ExpansionRom *rom = &zorro_autocon_init[i].rom;
		if (be16_to_cpu(rom->er_Manufacturer) == ZORRO_MANUF(id) &&
		    rom->er_Product == ZORRO_PROD(id))
			return 1;
	}

	return 0;
}

#else /* !CONFIG_ZORRO */

static inline int z_dev_present(zorro_id id) { return 0; }

#endif /* !CONFIG_ZORRO */


static const struct resource a3000_scsi_resource __initconst = {
	.start	= 0xdd0000,
	.end	= 0xdd00ff,
	.flags	= IORESOURCE_MEM,
};


static const struct resource a4000t_scsi_resource __initconst = {
	.start	= 0xdd0000,
	.end	= 0xdd0fff,
	.flags	= IORESOURCE_MEM,
};


static const struct resource a1200_ide_resource __initconst = {
	.start	= 0xda0000,
	.end	= 0xda1fff,
	.flags	= IORESOURCE_MEM,
};

static const struct gayle_ide_platform_data a1200_ide_pdata __initconst = {
	.base		= 0xda0000,
	.irqport	= 0xda9000,
	.explicit_ack	= 1,
};


static const struct resource a4000_ide_resource __initconst = {
	.start	= 0xdd2000,
	.end	= 0xdd3fff,
	.flags	= IORESOURCE_MEM,
};

static const struct gayle_ide_platform_data a4000_ide_pdata __initconst = {
	.base		= 0xdd2020,
	.irqport	= 0xdd3020,
	.explicit_ack	= 0,
};


static const struct resource amiga_rtc_resource __initconst = {
	.start	= 0x00dc0000,
	.end	= 0x00dcffff,
	.flags	= IORESOURCE_MEM,
};


static int __init amiga_init_devices(void)
{
	struct platform_device *pdev;
	int error;

	if (!MACH_IS_AMIGA)
		return -ENODEV;

	/* video hardware */
	if (AMIGAHW_PRESENT(AMI_VIDEO)) {
		pdev = platform_device_register_simple("amiga-video", -1, NULL,
						       0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}


	/* sound hardware */
	if (AMIGAHW_PRESENT(AMI_AUDIO)) {
		pdev = platform_device_register_simple("amiga-audio", -1, NULL,
						       0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}


	/* storage interfaces */
	if (AMIGAHW_PRESENT(AMI_FLOPPY)) {
		pdev = platform_device_register_simple("amiga-floppy", -1,
						       NULL, 0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(A3000_SCSI)) {
		pdev = platform_device_register_simple("amiga-a3000-scsi", -1,
						       &a3000_scsi_resource, 1);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(A4000_SCSI)) {
		pdev = platform_device_register_simple("amiga-a4000t-scsi", -1,
						       &a4000t_scsi_resource,
						       1);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(A1200_IDE) ||
	    z_dev_present(ZORRO_PROD_MTEC_VIPER_MK_V_E_MATRIX_530_SCSI_IDE)) {
		pdev = platform_device_register_simple("amiga-gayle-ide", -1,
						       &a1200_ide_resource, 1);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
		error = platform_device_add_data(pdev, &a1200_ide_pdata,
						 sizeof(a1200_ide_pdata));
		if (error)
			return error;
	}

	if (AMIGAHW_PRESENT(A4000_IDE)) {
		pdev = platform_device_register_simple("amiga-gayle-ide", -1,
						       &a4000_ide_resource, 1);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
		error = platform_device_add_data(pdev, &a4000_ide_pdata,
						 sizeof(a4000_ide_pdata));
		if (error)
			return error;
	}


	/* other I/O hardware */
	if (AMIGAHW_PRESENT(AMI_KEYBOARD)) {
		pdev = platform_device_register_simple("amiga-keyboard", -1,
						       NULL, 0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(AMI_MOUSE)) {
		pdev = platform_device_register_simple("amiga-mouse", -1, NULL,
						       0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(AMI_SERIAL)) {
		pdev = platform_device_register_simple("amiga-serial", -1,
						       NULL, 0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(AMI_PARALLEL)) {
		pdev = platform_device_register_simple("amiga-parallel", -1,
						       NULL, 0);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}


	/* real time clocks */
	if (AMIGAHW_PRESENT(A2000_CLK)) {
		pdev = platform_device_register_simple("rtc-msm6242", -1,
						       &amiga_rtc_resource, 1);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	if (AMIGAHW_PRESENT(A3000_CLK)) {
		pdev = platform_device_register_simple("rtc-rp5c01", -1,
						       &amiga_rtc_resource, 1);
		if (IS_ERR(pdev))
			return PTR_ERR(pdev);
	}

	return 0;
}

arch_initcall(amiga_init_devices);